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Senior Process Engineer Jobs in Peru, IL (NOW HIRING)

Senior Process Engineer

Peru, IL ยท On-site

$100K - $136K/yr

The Senior Process Engineer will lead complex technical problem-solving efforts, including root cause failure analysis (RCFA), and provide engineering leadership on capital and improvement projects.

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LHH is seeking an experienced Process Engineer to serve as a technical expert to drive improvements in plant efficiency and reliability, lead root cause analysis, and support capital projects to ...

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LHH is seeking an experienced Process Engineer to serve as a technical expert to drive improvements in plant efficiency and reliability, lead root cause analysis, and support capital projects to ...

Apply Early

Process Engineer

La Salle, IL ยท On-site

$105K - $136K/yr

THE OPPORTUNITY Reporting to the Permanganates Plant Manager, the Process Engineer will play a key role in driving long-term plant efficiency, reliability, and process stability through data analysis ...

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Engineer Process

La Salle, IL ยท On-site

$95K - $130K/yr

Bachelor's degree in Engineering or related field * 3+ years of related experience * Strong analytical and problem-solving skills * Experience with process optimization and control methods

Sr. Mechanical Engineer

Princeton, IL ยท On-site

$95K - $125K/yr

Senior Mechanical Engineer Allegion is looking for a passionate Senior Mechanical Engineer to work ... Understanding of manufacturing processes, including: stamping, forging, casting, powder metal ...

Sr. Mechanical Engineer

Princeton, IL ยท On-site

$95K - $125K/yr

Senior Mechanical Engineer Allegion is looking for a passionate Senior Mechanical Engineer to work ... Understanding of manufacturing processes, including: stamping, forging, casting, powder metal ...

Sr. Mechanical Engineer

Princeton, IL ยท On-site

$95K - $125K/yr

Senior Mechanical Engineer Allegion is looking for a passionate Senior Mechanical Engineer to work ... Understanding of manufacturing processes, including: stamping, forging, casting, powder metal ...

Senior Machine Learning Test Engineer

Ohio, IL ยท On-site +1

$104K - $135K/yr

Job Requisition ID # 26WD98377 Senior Machine Learning Test Engineer Location: United States East ... Experience with CI/CD tools and processes * Experience with data pipelines and orchestration tools ...

As a Senior Enterprise Sales Engineer, you'll serve as a trusted technical advisor and strategic ... Own the sales process in partnership with Account Executives by leading and shaping the technical ...

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Validation Engineer

Ottawa, IL ยท On-site

$90K - $100K/yr

Senior Validation Engineer Location: Ottawa, Illinois Employment Type: Full-Time About the Position ... This role is responsible for validating equipment, facilities, utilities, manufacturing processes ...

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Showing results 1-20

Senior Process Engineer information

See Peru, IL salary details

$70.5K

$113.8K

$160.2K

How much do senior process engineer jobs pay per year?

As of Jul 6, 2026, the average yearly pay for senior process engineer in Peru, IL is $113,787.00, according to ZipRecruiter salary data. Most workers in this role earn between $97,700.00 and $126,400.00 per year, depending on experience, location, and employer.

What is the difference between Senior Process Engineer vs Process Engineer?

AspectSenior Process EngineerProcess Engineer
QualificationsBachelor's or Master's in Engineering, often with 5+ years experienceBachelor's degree in Engineering or related field, typically 1-3 years experience
ResponsibilitiesLeading process improvements, mentoring, project managementSupporting process development, data analysis, assisting senior staff
Work EnvironmentDesign teams, manufacturing plants, R&D departmentsManufacturing facilities, engineering teams, operational support

Senior Process Engineers typically have more experience, leadership duties, and oversee complex projects, while Process Engineers focus on supporting process development and implementation. Both roles are essential in manufacturing and engineering industries, but the senior role involves greater responsibility and strategic planning.

What are the key skills and qualifications needed to thrive as a Senior Process Engineer, and why are they important?

To thrive as a Senior Process Engineer, you need a strong background in chemical or process engineering, problem-solving skills, and typically a bachelor's or master's degree in a relevant field. Expertise in process simulation software (such as Aspen Plus or HYSYS), Six Sigma or Lean certifications, and familiarity with process control systems are highly valued. Outstanding analytical abilities, leadership, and effective communication set top performers apart in this role. These skills and qualifications are crucial for optimizing processes, ensuring safety and compliance, and leading teams to achieve operational excellence.

What does a Senior Process Engineer do?

A Senior Process Engineer is responsible for designing, optimizing, and overseeing processes within manufacturing or production environments. They analyze workflows, troubleshoot issues, and implement improvements to increase efficiency, safety, and product quality. Senior Process Engineers often lead projects, mentor junior engineers, and collaborate with cross-functional teams to ensure operational excellence. Their expertise is vital in industries like chemicals, pharmaceuticals, oil and gas, and food processing.

What are some common challenges Senior Process Engineers face when working on cross-functional teams?

Senior Process Engineers often collaborate with professionals from various departments, such as operations, quality, and maintenance. A common challenge is aligning diverse priorities and communication styles to achieve shared project goals. Successfully managing these differences requires strong interpersonal and project management skills, as well as the ability to translate technical concepts for non-engineering colleagues. Regular meetings and clear documentation can help ensure everyone stays informed and engaged throughout the process.
What cities near Peru, IL are hiring for Senior Process Engineer jobs? Cities near Peru, IL with the most Senior Process Engineer job openings:
Infographic showing various Senior Process Engineer job openings in Peru, IL as of July 2026, with employment types broken down into 2% Locum Tenens, 86% Full Time, 9% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $113,787 per year, or $54.7 per hour.
Senior Process Engineer

Senior Process Engineer

Epsilyte LLC

Peru, IL โ€ข On-site

$100K - $136K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 3 days ago

Be an early applicant


Job description

Description:

At Epsilyte LLC, we are seeking a highly motivated and results-driven Senior Process Engineer to support our EPS manufacturing operations in a PSM-covered environment. This role will be responsible for driving process optimization, supporting production and reliability across EPS operations, packaging systems, and utilities/waste treatment areas, and ensuring safe, efficient, and compliant plant performance.


The Senior Process Engineer will lead complex technical problem-solving efforts, including root cause failure analysis (RCFA), and provide engineering leadership on capital and improvement projects. This role requires strong collaboration with operations, maintenance, EHS, and technical teams, as well as mentoring and developing junior engineers.


Position Duties/Responsibilities:

  • Lead process optimization efforts across EPS manufacturing, packaging, and utilities/waste treatment systems to improve safety, reliability, throughput, and cost performance
  • Serve as technical lead for complex root cause failure analysis (RCFA) investigations and implement sustainable corrective actions
  • Provide day-to-day engineering support for plant operations, including troubleshooting abnormal and non-routine conditions
  • Support and ensure compliance with PSM programs, including participation in PHAs, MOCs, and process safety initiatives
  • Identify, develop, and execute capital and reliability improvement projects from concept through implementation
  • Collaborate with operations, maintenance, and reliability teams to improve unit performance and equipment uptime
  • Support process control strategies and work closely with DCS systems to optimize plant performance
  • Utilize CMMS tools to support maintenance strategies, reliability improvements, and equipment history analysis
  • Provide technical input for process design, operating procedures, and equipment specifications
  • Interface with third-party vendors and contractors to support plant initiatives and projects
  • Mentor and develop junior engineers, providing guidance on troubleshooting, process understanding, and engineering best practices
  • Support production trials, product quality improvements, and process development efforts
  • Participate in planned plant outages and provide off-hours support as required
  • Promote a strong safety culture and ensure adherence to all safety and environmental requirements
  • Perform other duties as assigned, including development and management of KPIs


Requirements:


Qualifications:

  • Bachelorโ€™s degree in Chemical Engineering (required)
  • Minimum 5 years of experience in manufacturing with demonstrated success in process optimization and performance improvement
  • Experience working in a PSM-covered chemical manufacturing environment
  • Proven ability to lead and execute complex RCFA investigations
  • Experience supporting capital and process improvement projects
  • Strong troubleshooting and analytical problem-solving skills
  • Experience with DCS systems (preferred)
  • Experience with CMMS systems (preferred)
  • Previous EPS manufacturing experience (preferred)
  • Familiarity with process safety tools such as HAZOP, PHA, and MOC processes
  • Strong communication, teamwork, and organizational skill

Key Attributes:

  • Strong commitment to safety, compliance, and operational excellence
  • Results-driven mindset with a focus on continuous improvement
  • Ability to influence and drive change across cross-functional teams
  • Demonstrated leadership in mentoring and developing others
  • High attention to detail and ability to manage multiple priorities
  • Strong technical curiosity and problem-solving mindset
  • Ability to challenge assumptions constructively to achieve the best outcomes

Other Considerations:

  • Physical ability to work in an industrial environment, including ability to wear PPE in designated areas (hard hat, safety glasses, FRC, safety shoes, and hearing protection), climbing stairs and ladders, willingness to work around dust, chemicals, and other
  • This role is subject to the Transportation Workers Identification Credentialing rule or "TWIC" and requires a successful candidate to obtain a TWIC identification badge, allowing for unescorted access to the facility
  • We are an equal opportunity employer
  • This role is not eligible for work visa sponsorship

Wage and Benefits Transparency:


The final base pay offer for this position will be determined by individual factors such as location, external market factors, internal equity, and the candidateโ€™s job-related knowledge, skills, and experience. The base salary range for this position is $100,000 to $136,000 per year.


This role is eligible for benefits, annual bonuses, and profit-sharing.


Epsilyte provides the following benefits options:

  • Paid Time Off: Balance life and work with vacation and personal leave
  • Family Sick Leave: Paid sick leave for absences due to illness, injury, or medical appointments of a family member; up to 40 hours per year
  • Healthcare Insurance Benefits: Options for affordable medical, prescription drug, dental, and vision, along with additional insurance options within the first 30 days of hire
  • Retirement Plan: 401(k) with 100% company match up to 6% of eligible compensation and a separate annual profit-sharing contribution of 5% of base salary (minimum) up to 10% based on company performance with immediate vesting
  • Life and disability coverage: Company-provided short-term disability and $50,000 life/AD&D policy; LTD and additional life insurance available for you and your family
  • Paid Parental Leave: Four weeks of additional paid time off with your child after birth, adoption, or foster placement, irrespective of gender
  • Compassionate Care Leave: Paid and unpaid time off for bereavement following the loss of a loved one and other life-altering events

Reports to: Process Engineering & Controls Manager - Peru, IL


Who is Epsilyte?


Epsilyte LLC is one of North Americaโ€™s leading producers of expandable polystyrene resin (EPS). We are a growing company of scale focused on solving customer needs for efficient, high R-value EPS. This includes reducing energy usage in buildings, ensuring safe and healthy food through innovative packaging technology, and participating in infrastructure investment both in the United States and abroad. Our vision is to improve society through our high-value, insulative products in a responsible and sustainable manner. We are headquartered in The Woodlands, Texas, with manufacturing operations in Illinois, Ohio, and Montreal, Quebec. https://epsilyte.com


About Peru, Illinois:


Peru is located in north central Illinois near the crossroads of Interstate 80 and Interstate 39, alongside the Illinois River, close to Starved Rock State Park, and 90 miles southwest of downtown Chicago. Known as the Illinois Valley, the local area contains vibrant communities and a high quality of life. Made up of 24 cities and villages in three counties, the area offers ample outdoor activities, a traditional midwestern lifestyle, and access to Chicago and all that it has. A diverse economy, low cost of living, a creative culture, and a well-educated population define the Illinois Valley. Visit www.ivaced.org for more information.